If your breathing problem is so severe that your life is threatened, a lung transplant may be considered. Donor lungs usually come from someone who is deceased. The operation lasts 4 to 12 hours, and in some cases may include a donor heart as well. There is a several week hospital stay followed by close follow-up. Modern matching techniques and drug therapy have significantly reduced problems with organ rejection, although this is still a possibility. After the operation, patients usually report an improved quality of life. Overall, 83% of lung transplant patients survive the first year, and about 60% survive three years.